For any object orbiting the Sun, Kepler's Law may be written T2 = kr3. If T is measured in years and r in units of the Earth's distance from the Sun, then k = 1. What, therefore, is the time (in years) for a comet to orbit the Sun if its mean radius from the Sun is 10^4 times the Earth's distance from the Sun? a. 10^4 years b. 10^6 years c. 10^8 years d. 10^10 years

For any object orbiting the Sun, Kepler's Law may be written T2 = kr3. If T is measured in years and r in units of the Earth's distance from the Sun, then k = 1. What, therefore, is the time (in years) for a comet to orbit the Sun if its mean radius from the Sun is 10^4 times the Earth's distance from the Sun? a. 10^4 years b. 10^6 years c. 10^8 years d. 10^10 years